Compressor or pump



Feb. 2, 1932. E. WILSON 1,843,747

COMPRESSOR OR PUMP Filed April 8, 1929 2 Sheets-Sheet 1 W e/7762." {Elia/ 7712760,

Feb. 2, 1932. E. WILSON COMPRESSOR OR PUMP Filed April 8, 1929 2 Sheets-Sheet 2 \\\k Q 1 W M =2 w Q a Patented Feb. 2, 1932 UNITED STATES PATENr OFFICE EDWARD WILSON, or sr. LOUIS, MISSOURI COMPRESSOR on. rum? Application filed April 8, 1929. Serial No. 353,379.

' erating said cylinder by said shaft.

Another object is to provide a machine improving generally the construction, relationship and arrangement of parts disclosed in my companion application Serial No.

' 303,400, filed September'l, 1928.

Other objects will appear from the following description, reference being made to the drawings in which M Fig. 1 is a vertical sectional improved machine.

Fig. 2 is a cross sectional view approxi- 'mately on the line 2-2 of Fig. 1.

i Fig. 3 is a sectional View approximately on the line 33 of Fig. 2 showing the construction and arrangement of the outlet passage from' the compression chamber for the compressed air or gas. v

Fig. 4 is a sectional view showing the inlet or return passage to the compressor.

The machine shown comprises a base 1 having an upwardly extended cylindrical head 2 rising from a smooth radial end wall 3.

A frame comprising a vertical portion 4 which is preferably circular in cross section and a web 5 having acentral bearing support 6 is attached to the base 1 by bolts 7 and is enclosed within a housing 8 fastened to the base 1 by (bolts 9. The bearing support view of my 6 is in vertical axial alinement with a bearing support 10 formed in the base 1 below the plane of the head 2. An electric motor '11 is attached to the support 4 within the housing 9 and wires 12 for said motor enter the housing through a removable plate 13.

A cylinder 14 is mounted aroundthe head- 2 and is operative to compress the air or gas for rotation thereby. This shaft tates with said shaf entering the space between the cylinder and the head. The internal diameter of the cylinder is greater than the diameter of, the head 2. The lower end of the cylinder 14 operates in close contact with the smooth radial wall 3 formed on the base 1. The upper end of the cylinder 14 has an end wall 15 extending radially toward the axis and operating in close contact with the upper end of the head 2.

One side of the head 2 is formed with a wide radial slot 16 extending the full length of the head from the wall 3 to the cylinder end wall'15. A plate or blade 17 is mounted for radial sliding movements in said. slot.

A cup retainer 18 is mounted for sliding movements in a cylindrical hole 19 in the inner edge of the plate or blade 17 and encloses 'a spring 20 having one end bearing against the inner end wall of said cup retainer and the opposite end bearing against the bottom of the hole 19 in the plate or blade 17 A shaft 21 is connected with the motor 11 projects 7 downwardly through the head 2and has aflixed thereto a rin 22 so that saidring ro- "A ring 23 is concentric with the ring 22 and has floating fit orbearing within the bearing support 6. A 8 series of antifriction bearing elements 24 are mounted and retained between the rings 22 and 23. The lower end of the shaft 21 with-- in the bearing support 10 has affixed thereto a ring 25. The portions of the shaft 21 g on which the'rings 22 and 25 are secured are in axial alinement. A ring 26 is rotatively mounted in the bearing support 10 and seats upon ia'shoulder 27. A series of antifriction elements ,28 are supported and maintained 9 between the rings 25 and 26. Thus, the bearing at the lower end of the shaft constitutes an antifriction bearing to minimize frictional resistance to rotation of the shaft and also constitutes a' thrust bearing for said with Said ring. The cylinder 14 has a conto counterbalance the eccentric 29 and the of oil into and from said cup.

centric hub 30 which extends downwardly clamping nut 25 screwed on the lower end.-

of the shaft 21 supports the ring 25 and clamps the ring 34 against the ring 31 and clamps the ring 31 against the circumferential flange 31 -Thus,-by theclose engagement of the rings 25 and 31 on the shaft and by the clamping device therefor said rings 25 and 31 are held rigid with the shaft.

The cup retainer 18 for the spring 20 has its inner end seated against the periphery of the hub 30 so that said spring 20 is maintained under uniform tension and holds the outer edge of the plate'or blade 17 in permanent contact with the inner periphery of the cylinder 14. The cylinder end wall 15 has therethrough holes 35 for the passage of oil into the head 2 and about the hub 30. And the cupretainer 18 is preferably formed with a hole 36 in its inner end to permit flow The passage 37 throughthe head 2 admits air or gas into the space between the cylinder 14 and the head 2. An outlet passage 38 is provided for the compressed air or gas. The

passage 38 opens into aipipe 39 projecting upwardly through the web 5 .to a height well above the oil level indicated by the line 40 (Fig. 1). The passage 39 is controlled by a valve comprising a disc 41 (Fig. 3) mounted in a valve chamber 42 and pressed to closed position'by a spring 43. Extent of movement of the spring 43 is limited by the spring support 44 removably screwed into the base 1. When the machine is in use it is kept filled with oil to about the line 40 which is above all of the bearings for the shaft 21 but below 7 a counterweight 45 attached to the shaft 21 connected parts. 'Since the counterbalance weight 45 is above the oil level it meets with no resistance by the oil. The bearing'supported by the web 5 and the bearing for the lower end of the shaft stabilize the shaft, prevent vibration, reduce friction and obtain maximum ease of operation. These types of bearings permit free circulation and passage of the oil therethrough so that the parts are maintained in a perfectly lubricated 'conditionall of the time. Free circulation of the oil into and out of the well 46 below the lower end of the shaft is further obtained through a port 47. Thus the circulation of the oil is made easy and maximum efficiency in operation is obtained.

When the machine is running the cylinder 14 is operated eccentrically about the stationary head 2 with the result that the air or gas entering the cylinder, that is to say, thehcompression chamber between the cylinder and the head, through the port 37, is compressed and discharged through the port 38, being controlled somewhat by the valve 41. The compressed air or 'gas is discharged into the housing 8 above the oil level 40 by means of the pipe 39 and is conducted to any point of use through an outlet pipe 48. Obviously the machine may be equipped with a return pipe (not shown).

From theforegoing it is clear enough that the invention obtains all of its intended obing said shaft by said bearings, .an eccentric on said shaft between said bearings and partly enclosed by a part of said means, a cylinder enclosingv said head and cooperating therewith to form a compression chamber, a hub on said cylinder extending into said head, a

ring having floating fit within said hub for operating said hub about said head, and antifriction devices for operating said ring by a part of said shaft supporting means.

2. Acompressor or pump. comprising a stationary cylindrical head, an antifriction bearing below and an antifriction bearing above said head, a shaft extending through said head'and journaled for rotation in said bearings, means cooperating with said bearing that is below said head for supporting sald shaft, a cylinder enclosing said head and cooperating therewith to form a compression chamber, an antifriction bearing ring enclosing and operated by apart of said means, and means controlled by said antifriction ring for operating said cylinder 'eccentrically about said head. s

3. A compressor or pump comprising a stationary cylindrical head, a bearing below and.

a bearing above said head, a shaft extending through said head and j'ournaled for rotation in said bearings, an eccentric'on said shaft between said bearings, means mounted on said eccentric and cooperating-with said bearing that is below said head for supporting said shaft, a cylinder enclosing said head and cooperating therewith to form a compression chamber, a hub in connection with said cylinder extending into said head and about a part of said means, and an antifriction device between said means and said'hub for operating 'said hub eccentrically Within said means for supporting said shaft by said first head.

4:. A compressor or pump comp rising a stationary cylindrical head, a bearing below and a bearing above said head, a shaft extending through said head and journaled for rotation in said bearings, an eccentric on said shaft between said bearings, means mounted on said eccentric and cooperating with said bearing that is below said head for support-ing said shaft, a cylinder enclosing said head and cooperating therewith to form a compression chamber, a hub in connection with said 'cylinder extending into said head and about a part of said means, an antifriction device between said means and'said hub for operating said hub eccentrically about said head, a plate or blade mounted for radial movements in said head, and means controlled by said hub for pressing said plate radially into contact with the inner periphery of said cylinder. 7

5. A compressor or pump comprising a base, a cylindrical head rigid with and rising from said base, said base having a cavity therein below said head and having a passage opening laterally into said cavity, a bearing supported in said cavity, a bearing supported above said head, a shaft journalled for rotation in said bearings and extending through said head, elements mounted on said shaft and cooperating with said first bearing to supportsaid shaft, a cylinder enclosing said head and cooperating therewith to form a compression chamber, and means for operating said cylinder about said head to effect compression of fluid in said compression chamber.

6. A compressor or pump comprising abase, a cylindrical head rigid with and rising from said base, said base having a cavity therein below said head and having a passage openinglaterally intosaid cavity, a bearing supported in said cavity, a bearing supported above said head, a shaft journalled for rotation in said bearings and extending through said head, elements mounted on said shaft and cooperating with said first bearing to support said shaft,a cylinder enclosing said head and cooperating therewith to form a compression chamber, means for operating said cylinder about said head to effect compression of fluid insaid compression chamber, a housbearing, a motor for rotating said shaft, mechanism for operating said cylinder about said head-by said shaft, a housing for confining a body of oil about said head and said bearings and in communication with said passage to said cavity, and means for conducting compressed'fluid from said cylinder into said housing above said body of oil.

EDWARD WILSON.

III 

